San Jose extended a regular-season unbeaten streak to 13 games against Colorado, but needed a shootout to do it on Tuesday night to win for only the second time in 11 games. Patrick Marleau scored in the fourth round of the shootout to give the hosts a 3-2 victory over the Avalanche, who have lost eight straight at HP Pavilion.

"Any building on the road is hard to play in," Colorado coach Joe Sacco said. "You've got to get dialed in, make sure that your intensity level is high and you don't have the luxury of certain match-ups you might like."

The Sharks have won eight straight at home, three of them in overtime. They produced the only two shots of overtime and outshot the Avalanche 41-27 over 65 minutes.

Colorado tied the game late in regulation when its fourth line connected for the second time. Center Mark Olver was credited with the goal, his second of the season, after video review showed his shot crossed the goal line under the crossbar.

Sharks coach Todd McLellan changed one forward on each of his four lines after the first period, and it was the fourth line that benefited most.

James Sheppard, who started on the third line, skated from behind the Colorado net and threw a backhand pass across the crease where former Av TJ Galiardi poked his first goal of the season past Colorado goalie Semyon Varlamov at 2:55 to break a 1-1 tie.

"I didn't like the first game I played against them this year, I think I was too hyped up," Galiardi said. "This time I took it easy, did my usual routine and it worked out."

Sheppard outworked Colorado defenseman Greg Zanon to produce the spiffy pass and Galiardi got position on defenseman Ryan O'Byrne to score. Forward Adam Burish was credited with the second assist, his first point as a Shark in his 18th game.

"I think everybody is ready to play anywhere they can," Sheppard said. "It's fun playing with those guys, they're high energy."

Logan Couture scored his first goal in nine games on San Jose's opening shift. Joe Thornton sent a bullet pass from the corner to a streaking Couture, who one-timed the feed past Varlamov just 25 seconds after the opening face-off.